package Day08;

public class Demo04 {
    public static void main(String[] args) {
        //装箱和拆箱
        Integer i = new Integer(200);//手动装箱
        int a = i.intValue();//手动拆箱
        System.out.println(a);

        //自动装箱
        Integer j = 200;
        //自动装箱
        int b = j;
        System.out.println(j);
    }
}
